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1.发明公开公开(公告)号：US20240257011A1
公开(公告)日：2024-08-01
申请号：US18557552
申请日：2023-08-28
Applicant: State Grid Electric Power Research Institute In Shandong Province Power Company , State Grid Corporation Of China
Inventor： Chao ZHOU , Hui LIU , Jiafeng QIN , Xiaobin SUN , Ran JIA , Dandan LI , Bo GENG , Yang ZHANG , Rong LIU , Hao SHEN , Chuanbin LIU , Chuanwei YU , Jie YANG , Yingming CAI , Xingyan CHEN , Chengcheng GAO , Likun WEI
IPC: G06Q10/0635 , G06Q10/0639 , G06Q50/06
CPC classification number: G06Q10/0635 , G06Q10/0639 , G06Q50/06
Abstract: Provided is a risk assessment method for power transmission line windage yaw flashover. The method includes determining the influence factors of power transmission line windage yaw flashover and setting risk assessment indexes according to the influence factors (S101); generating the standard cloud of the risk assessment indexes according to the incident occurrence probabilities and the consequence levels of the risk assessment indexes (S103); scoring the influence factors according to the risk assessment indexes and generating the risk cloud of the risk assessment indexes according to scoring results (S105); and performing a two-dimensional similarity calculation on the risk cloud and the standard cloud to obtain two-dimensional similarity between the risk cloud and the standard cloud and determining the risk level of the power transmission line windage yaw flashover according to the two-dimensional similarity (S107).
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公开(公告)号：US12051909B2
公开(公告)日：2024-07-30
申请号：US17997367
申请日：2021-07-30
Applicant: NANJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS , STATE GRID ELECTRIC POWER RESEARCH INSTITUTE CO. LTD
Inventor： Dong Yue , Chunxia Dou , Zhijun Zhang , Wenbin Yue , Xiaohua Ding , Jianbo Luo , Yanman Li , Kun Huang , Tao Han
CPC classification number: H02J3/48 , H02J3/241 , H02J3/28 , H02J2300/24 , H02J2300/28 , H02J2300/40
Abstract: Disclosed are an emergency control method and system based on source-load-storage regulation and cutback. According to the method, output power of power generating sources is regulated according to a power regulating quantity and a frequency regulation requirement, an output power compensation and output frequency of each power generating source are maintained within permissible ranges, so that a balance between power supply and demand of a power distribution network is maintained; and standby energy-storage power stations are used to make up a power gap, and an external power supply system is used to assist in making up a power deficiency, so that large load disturbance can be handled make up the power gap.
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公开(公告)号：US20230343489A1
公开(公告)日：2023-10-26
申请号：US17913873
申请日：2020-12-07
Applicant: WUHAN NARI LIMITED LIABILITY COMPANY OF STATE GRID ELECTRIC POWER RESEARCH INSTITUTE , NARI GROUP CORPORATION
Inventor： Jiangang DENG , Zhenbo LAN , Zhuolin XU , You SONG , Yu NIE , Lei KE , Hao ZHAN , Jun FU , Qiang SUN , Yuefei MAO , Qian MA , Qianwen ZHOU , Kaikai GU , Haoxin LI , Lei SHI , Yu XU , Cheng TANG , Yakai PENG , Youyi SHI
CPC classification number: H01B17/42 , H01B17/583 , H01B19/00 , H01B17/64
Abstract: A method for developing an epoxy resin impregnated glass fiber Direct Current (DC) bushing, comprising: according to length parameters of each layer of capacitive screen or resistive screen designed depending on insulation requirements, selecting bushing design parameters, determining a winding machine program according to the bushing design parameters, and winding a core body according to the winding machine program, wherein during the core body winding process, the core body begins to be initially cured; after the core body is wound, curing the core body by an oven according to a preset oven temperature and duration; machining the cured core body according to a preset core body design drawing; after the inner wall of a flange is polished and cleaned and is heated and pretreated by the oven, injecting glue at the position of a glue injection hole of the flange for gluing the core body and the flange; sequentially assembling a collector ring, a hollow composite insulator, and a voltage-equalizing sealing cover on the glued core body, and mounting a conducting rod, a wiring board, and a voltage-equalizing ball; and performing various tests on the bushing according to a preset bushing standard for a DC system.
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4.发明申请公开(公告)号：US20230074700A1
公开(公告)日：2023-03-09
申请号：US17862004
申请日：2022-07-11
Applicant: State Grid Shanghai Electric Power Company , Shanghai Electric Power Trading Center Co.,Ltd. , North China Electric Power University , State Grid Electric Power Research Institute Co.,Ltd. , Beijing KeDong Electric Power Control System Co.,Ltd. , State Grid Electric Vehicle Service Company
Inventor： Dunnan LIU , Mingguang LIU , Jing YANG , Yue SHEN , Li TAO , Jian LIU , Hua ZHONG , Wen WANG , Qiqi ZHANG , Weihua WENG , Lingxiang WANG , Yingzhu HAN , Jianye ZOU , Xin DU , Lin ZHANG , Ye YANG , Shu SU
Abstract: A prediction method for charging loads of electric vehicles with consideration of data correlation includes: collecting historical data of the charging loads of the electric vehicles; carrying out data correlation analysis on the historical data of the charging loads of the electric vehicles, and real-time data, and calculating correlation coefficients between the historical data of the charging loads of the electric vehicles and the real-time data; based on the correlation coefficients, selecting historical data of the charging loads of the electric vehicles, which has high correlation, as data of the charging loads of the electric vehicles, which is used for prediction; and predicting the historical data of the charging loads of the electric vehicles, serving as the data of the charging loads of the electric vehicles, which is used for prediction, by adopting an LSTM algorithm, to obtain prediction results.
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公开(公告)号：US20230064940A1
公开(公告)日：2023-03-02
申请号：US17862032
申请日：2022-07-11
Applicant: State Grid Shanghai Electric Power Company , Shanghai Electric Power Trading Center Co.,Ltd. , North China Electric Power University , State Grid Electric Power Research Institute Co., Ltd. , Beijing KeDong Electric Power Control System Co., Ltd. , State Grid Electric Vehicle Service Company
Inventor： Dunnan LIU , Mingguang LIU , Ping SONG , Yue SHEN , Li TAO , Hua ZHONG , Tao YU , Wen WANG , Chunyi CHEN , Jian LIU , Tingting ZHANG , Yue XI , Jianye ZOU , Xin DU , Lin ZHANG , Ye YANG , Shu SU
Abstract: A method for optimizing dispatching of charging loads of electric vehicles to promote wind power consumption includes: acquiring blocked electric quantity of wind power at a peak down-regulation period; acquiring a curve of disorderly charging loads of the electric vehicles; establishing a model for optimizing the charging loads of the electric vehicles to promote wind power consumption, wherein an objective function of the model refers to that the electric vehicles participate in wind power consumption to minimize the remaining blocked quantity of the wind power, and the total charging cost of the electric vehicles is lowest, and acquiring constraint conditions of the model; and solving the optimization model by adopting an adaptive mutation particle swarm optimization algorithm, to obtain the target charging/discharging electric quantity and the target charging/discharging power of the electric vehicles.
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Patent Agency Ranking
公开(公告)号：US12148547B2
公开(公告)日：2024-11-19
申请号：US17913873
申请日：2020-12-07
Applicant: WUHAN NARI LIMITED LIABILITY COMPANY OF STATE GRID ELECTRIC POWER RESEARCH INSTITUTE , NARI GROUP CORPORATION
Inventor： Jiangang Deng , Zhenbo Lan , Zhuolin Xu , You Song , Yu Nie , Lei Ke , Hao Zhan , Jun Fu , Qiang Sun , Yuefei Mao , Qian Ma , Qianwen Zhou , Kaikai Gu , Haoxin Li , Lei Shi , Yu Xu , Cheng Tang , Yakai Peng , Youyi Shi
Abstract: A method for developing an epoxy resin impregnated glass fiber Direct Current (DC) bushing, comprising: according to length parameters of each layer of capacitive screen or resistive screen designed depending on insulation requirements, selecting bushing design parameters, determining a winding machine program according to the bushing design parameters, and winding a core body according to the winding machine program, wherein during the core body winding process, the core body begins to be initially cured; after the core body is wound, curing the core body by an oven according to a preset oven temperature and duration; machining the cured core body according to a preset core body design drawing; after the inner wall of a flange is polished and cleaned and is heated and pretreated by the oven, injecting glue at the position of a glue injection hole of the flange for gluing the core body and the flange; sequentially assembling a collector ring, a hollow composite insulator, and a voltage-equalizing sealing cover on the glued core body, and mounting a conducting rod, a wiring board, and a voltage-equalizing ball; and performing various tests on the bushing according to a preset bushing standard for a DC system.
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公开(公告)号：US11990756B2
公开(公告)日：2024-05-21
申请号：US17998039
申请日：2022-01-05
Applicant: NANJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS , STATE GRID ELECTRIC POWER RESEARCH INSTITUTE CO. LTD
Inventor： Dong Yue , Chunxia Dou , Zhijun Zhang , Xiaohua Ding , Jianbo Luo , Yanman Li , Kun Huang , Tao Han
IPC: H02J3/28
CPC classification number: H02J3/28 , H02J2203/20
Abstract: A multi-timescale voltage regulation method based on source-grid-load-storage multi -terminal collaboration of a power distribution network is disclosed, which comprises: establishing, based on a Petri network, a multi-mode switching control model based on voltage security event trigger to realize effective control of a global voltage; establishing multi-objective optimization taking into account a source-storage-load regulation cost and a network transmission loss to realize collaborative and dynamic control of controllable resources of a source terminal, a load terminal and a storage terminal in each operating mode; and establishing a source-storage-load multi-terminal collaboration-based distributed voltage control model based on voltage security event trigger over a short timescale by taking into account the problems of voltage magnitude being out of limit and voltage leap, and solving online an optimal control sequence of the source terminal, the load terminal and the storage terminal in a receding horizon.
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公开(公告)号：US20230291207A1
公开(公告)日：2023-09-14
申请号：US17921111
申请日：2021-08-02
Applicant: NANJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS , STATE GRID ELECTRIC POWER RESEARCH INSTITUTE CO., LTD
Inventor： Dong YUE , Chunxia DOU , Zhijun ZHANG , Xiaohua DING , Jianbo LUO , Yanman LI , Kun HUANG , Tao HAN
IPC: H02J3/38 , G05B19/042
CPC classification number: H02J3/381 , G05B19/042 , H02J2203/20 , H02J2300/24
Abstract: A networked control method for primary frequency regulation of a new energy power station based on a source-grid-load-storage networked cloud decision control system platform comprises: determining, according to historical operating data of a new energy power station, primary frequency regulation predictive values of power generation units of the new energy power station; determining, according to the primary frequency regulation predictive values, optimal control sequences of inverters of the power generation units at different times based on a pre-established inverter active power model, wherein the optimal control sequences comprise multiple control quantities of active power of the inverters; marking the optimal control sequences at the different times with time scales, sending the optimal control sequences to executing devices of the power generation units, receiving the optimal control sequences, and determining whether to store or not store the optimal control sequences; and determining the control quantities to be executed.
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9.发明公开公开(公告)号：US20240097454A1
公开(公告)日：2024-03-21
申请号：US17997367
申请日：2021-07-30
Applicant: NANJING UNIVERSITY OF POASTS AND TELECOMMUNICATIONS , STATE GRID ELECTRIC POWER RESEARCH INSTITUTE CO. LTD
Inventor： Dong YUE , Chunxia DOU , Zhijun ZHANG , Wenbin YUE , Xiaohua DING , Jianbo LUO , Yanman LI , Kun HUANG , Tao HAN
CPC classification number: H02J3/48 , H02J3/241 , H02J3/28 , H02J2300/24 , H02J2300/28 , H02J2300/40
Abstract: Disclosed are an emergency control method and system based on source-load-storage regulation and cutback. According to the method, output power of power generating sources is regulated according to a power regulating quantity and a frequency regulation requirement, an output power compensation and output frequency of each power generating source are maintained within permissible ranges, so that a balance between power supply and demand of a power distribution network is maintained; and standby energy-storage power stations are used to make up a power gap, and an external power supply system is used to assist in making up a power deficiency, so that large load disturbance can be handled make up the power gap.
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公开(公告)号：US09871376B2
公开(公告)日：2018-01-16
申请号：US14647801
申请日：2014-06-10
Applicant: JIANGSU NANJING POWER SUPPLY COMPANY , NARI TECHNOLOGY DEVELOPMENT LIMITED COMPANY , STATE GRID ELECTRIC POWER RESEARCH INSTITUTE , JIANGSU ELECTRIC POWER COMPANY
Inventor： Haodong Shen , Peifeng Shen , Tingli Chen , Kai Chen , Yalin Liu , Hong Zhu , Junjing Zhang , Jing Xiao , Hongwei Du , Tao Han , Wenlu Ji , Xing Luo , Wen Lu , Lin Wu , Rina Saqi
CPC classification number: H02J3/00 , G05B13/021 , G06Q10/04 , H02J3/006 , H02J2003/007 , Y02E60/76 , Y04S10/525 , Y04S40/22
Abstract: The invention provides a global optimization and dispatching method based on time scales. The method uses a target value system and a dispatch model. The global optimization and dispatching method takes input from the results from a variety of subtopics. The methods provide adjustment and optimization in accordance with the time scales that are given in the sub goal of each sub topic: long-term, mid-long-term, short-term, ultra short term and real time optimization. Smart distribution grid can improve operational efficiency, integrated application of new elements in the distribution network of distribution energy network, micro grid, energy storage device and non-linear loads. This invention is fully adapted to the smart grid trends, with a good prospective.
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